Angle shaft-coupling.



PATENTED JUNE y16, 1903.

S. W. ROBINSON. ANGLE SHAITGOUPLING.

APLIOATION FILED JAN. 31. 1903..

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` WITNESSES: l

ATTORNEY I UNITED STATES Patented J'une, 1903. p

STILLMAN W. ROBINSON, OF COLUMBUS, OHIO.

ANGLE SHAFT-COUPLING'.

SPECIFICATION forming part of Letters Patent No. 731,225, dated June 16, 1903. Application tied Jimmy 31,1903. sei-iai No, russe. (N0 model.)

To @ZZ whom t may concern,.-

Be it known that I, STILLMAN W. ROBIN, SON, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented a certain vnew and useful Im provementin Angle Shaft-Couplings, of which the following isa specification.

My invention relates to the improvement of angle shaft-couplings of'that class which are adapted to communicate rotary motion from one shaft to another when said shafts are arranged at angles with each other.

The objects of my invention are to provide an improved coupling of this class of superior` construction and arrangement of parts, toI provide an improved coupling of this class of simple construction capable of a positive operation Without undesirable friction, to insure an easy and comparatively noiseless operation of the parts, and to produce other improvements the details of which will be more fully pointed out hereinafter. These objects Iaccomplish inthe mannerillustrated in the accompanying drawings, in Whichn Figure 1 is a transverse section through the casing and couplingl mechanism on line of Fig. 2. Fig. 2 is a vertical section through the casing and coupling mechanism on line y y of Fig. 1. the shaft-arms which I employ in the inanner hereinafter described, and Fig. et is a detail view in elevation of one end of one of the coupler-arms.

Similar numerals refer to similar parts throughout the several views.

In carrying out my invention I employ a suitably-shaped casing-body 1, on which is secured an upper casing-section or cap 2, the latter being provided with a laterally-extending rim or lugs 3 to facilitate its attachment to an upper support. With two sides of the casing I form outwardly-projecting suitablyconstructed shaft-bearings 4, which extendat angles with each other, and rotatably mounted in these bearings are the shafts and 6, from one of which motion is to be imparted to the other. These shafts extend slightly within the casing 1 and carry on their inner ends arms, which are indicated, respectively, at 7 and S, each of these arms being formed, as shown more clearly in Fig. 3 of the drawings, with a Weight-producing enlargement Fig. 3 is a face view of one of- 8 on one end.A 9 represents a vertically-disposed shaft or standard, the upper end of which has a pivotal connection with the cen- -ter of the top portion 2"t of the cap-section 2, Vwhile the lower end of said shaft or standard is pivotally mounted Ain a socket 10, formed in the lower side of the case-body. 11 and 12 represent, respectively, the body portions of two couplers, said body portions extending in directions at an angle with each other. With what We will term the outer end of each of the coupler-body portions is formed a short arm, these arms being indicated, respectively, at 11a and 12a. Each of the coupler-.bodies 11 and 12 has projecting from its opposite end and opposite side what We Will term an inner arm,7 these inner arms being indicated,respectively,at 11b and 12b,and each of said arms 11" and 12b is provided with a terminal splitportion, which communicates With a pin-receiving opening 13, formed through said arm at right angles with the direction of itslength. -Thejawsorlips13,formedbythe splitting of the end portion of each of said inner coupler-arms, are adapted to be connected by clamping-bolts 14. As. shown in the drawings, the outer arms 12a and 11a are connected with the smaller ends of the shaftarms 7 and 8 through the medium of pins 15 and 16, these pins loosely entering sockets formed, respectively, in said shaft-arms and outer coupler-arms. The enlarged and central portions of the central standard or shaft V9 have formed therethrough longitudinally and at angles With each other pin-openings 17, through which pass pins 18 and 19, the latter having their central portions clamped, respectively, bythe split end portions of the inner arms 11h and 12b of the couplers, these portions of said coupler-arms entering recesses formed in said central shaft or standard.

The coupler-bodies 11 and 12 are further connected through the medium of pin-like arms 20 of anv angular connecting device, these connecting-arms extending loosely within `central longitudinal openings 21 of said coupler-bodies. In order to illustrate the operation of my improved angle-coupling, We will assume that rotary motion is imparted to the shaft 5 and that it is desired to impart motion therefrom to the shaft G. We will also assume that the motion of the IOO shaft 5 is such as to raise the smaller end of the arm 7 from the position shown in the drawings. As the smaller end of the shaft? is carried upward and made to describe a half-circle it is obvious that the arm portion l1a of the couplingll will also be moved upward and over through the pin connection 15 with said arm 7. In this movement it is obvious that the inner arm 1lb of the coupler ll and pin 1S will have imparted thereto a hinge movement within the shaft 9 and with the result, from the coupler-arm 11L being carried by the arm 7 until the latter has completed its half-circular movement, in a partial rotary movement in the direction of the arrow shown in Fig. l of the central shaft 9. As the smaller end of the arm 7 continues to complete its circle of travel it'will be un- -derstood that the coupler 1l will be returned to the position shown, which is likewise true of the central shaft 9. Owing to the employment of the angular connection between the couplers 1l and 12, it is obvious that the motion prescribed for the coupler 1l must result in such similar motion of the coupler 12 as to impart, through the pin connection 16 with the shaft-arm 8, a rotary motion to the shaft 6 corresponding withthat of the shaft 5. Owing to the fact that the pins 2O of the angular coupler connection are slidably mounted in the coupler-bodies 11 and l2, the movement from or toward each other to which the coupler-bodies may be subjected in the operation described will be permitted without interference with the connection of said coupler-bodies, said coupler-bodies being permitted to slide on said pins.

From the above-described construction and operation it will be readily seen that a simple and effective coupling mechanism is pro vided whereby motion may be transferred or imparted from one shaft to another when said shafts are arranged at angles or when the axes thereof converge to meet at a common or central point.

Having now fully described my invention, what I claim, and desire to secure by Letters Patent, is-V 1. In an angle shaft-coupling, the combination with two rotatably-mounted shafts at an angle with each other, and an arm carried on the inner end of each of said shafts, cfa central vertically pivoted shaft, couplingbodies extending at angles with each other, said coupling-bodies having a hinge connection with said central shaft and pin connections with corresponding ends of said shaftarms.

2.111 an angle shaft-coupling, the combination with two rotatably-mounted shafts at anangle with each other, and an arm carried on the inner end of each of said shafts, of a vertically-pivoted shaft at the point of intersection of the axes of said first-mentioned shafts, coupling-bodies having a hinge connection with said vertical shaft and a pivotal connection with said shaft-arms and an angular connecting device comprising arms or pins at an angle with each other and slidahly mounted in said coupling-bodies.

STILLMAN W. ROBINSON.

In presence of- A. L. PHnLPs, W. L. MoRRoW. 

